[  522.227446] bond0: (slave eth0): making interface the new active one
[  522.227562] bond0: (slave eth0): Enslaving as an active interface with an up link
[  526.390421] bond0: (slave eth0): Releasing backup interface
[  526.467169] bond0: (slave eth0): Enslaving as an active interface with an up link
[  530.612333] bond0: (slave eth0): Releasing backup interface
[  530.640301] bond0 (unregistering): Released all slaves